The race to build fitness app Endomondo
7 July 2014 Last updated at 18:42 BST
Mette Lykke left her job as a management consultant at prestigious US consultancy McKinsey to found her own firm.
She is now chief executive of Endomondo - a sports tracking app that allows fitness fans to monitor their progress.
After seven years the app she and her two co-founders created has 25 million users.
She explains how she has turned the business from an idea into a profitable business.